Stamping machine



Oct. 13, 1931. G. F. YAGER STAMPING MACHINE Filed March 10, 1950 3 Sheets-Sheet l INVENTOR 6801:;6 F Vcgoer BY Wan;

7Wmxx ATTORNEYS Oct. 13, 1931. G. F. YAGER STAMPING MACHINE Filed March 10, 1930 3 Sheets-Sheet 2 PHIL llwL: U l

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ENVENTOR 5607306 BY 7% m ATTORNEY Oct. 13, 1931. ca. F. YAGER STAMPING MACHINE Filed March 10, 1950 3 Sheets-Sheet 3 INVENTOR Georye F zyer MM ATTORNEY S BY mwm Patented Oct. 13,1931

UNITED I STATES PATENT OFFICE GEORGE E YAGER, or TOLEDO, OHIO, ASSIGNOR T BUNTING BRASS AND BRONZE COMPANY, or 'rorinno, onro, A conronarron or OHIO STAMPING MACHINE Application filed March 10, 1930. Serial No. 434,800.

This invention relates generally to stamp.

ing machines, particularly to those designed for stamping indicia such as Bunting. Made in U. S. A, upon tubular objects, such m as bushings, and consists of certain novel features of construction, combinations and arrangements ofvparts that will be hereinafter more full described and particularly pointed out int e appended claims. In the accompanying drawings: Figure 1 is a top plan view of a machine embodying my invention;

Figure 2 is a front elevation with parts broken away and in section of the machine 15 illustrated in Figure 1;

Figure 3is anend elevation ,of the ma chine;

Figure 4 is another end elevation of the machine; y 20 *ignre 5 is a sectional view taken on the line A A of Figure 2.

Referring now to the drawings, 1, 2, 3 and 4 respectively are upright walls, and 5 is the top wall of the machine casing; 6 is an elec- 5 tric motor mounted upon the wall 4 and having a relatively short shaft 7 is a stub shaft journaled ina bearing 9 projecting inwardly from the wall 3 in a plane substantial- 21 ly parallel with the shaft 7 10 and 11 respectively are pulleys keyed upon the shafts 7 and 8 at theouter ends thereof; and 12 is a belt connecting said pulleys 10 and 11. 13 is a drive shaft journaled in the upright Walls 2 and 3 adjacent the lower ends thereof; 14 is a gear keyed upon the shaft 13; 15

is a pinion on the shaft 8 meshin with the gear 14; 16 is a clutch collar controlling the driving connection between the pinion 15 and gear 14; 16 is a clutch operating shaft;

'45 and 16" is an operating lever for the shaft 16. 17 is a cam shaft journaled in the upright Walls 2 and 3 above the drive shaft 13; 18 and 19 respectively are pulleys keyed upon the shafts 13 and 17; and 20 is a belt connecting the pulleys 18 and 19.

21 is a stamp arbor journaled in a rocker 22 and connected bythe gears 23, 24, shaft 25 and gears 26, 27 and28respectively to the cam shaft 17 so thatthe arbor rotates whenever the cam shaft isrotating. Preferably the rocker 22 is substantially T-shaped and is mounted to rock upon the shaft 25 projecting laterally from an upright wall 29 of an upwardly openingsubstantially U-shaped depression 30 in the top Wall 50f the casing. As shown, the wing portions 31 and 31 of the rocker have elongated slots 32 and 33 therein that receive the shanks of suitable securing bolts 34 and 35. 36 is a stamp non-rotatably sleeved upon the arbor 21 and having a die 37 to produce the desired indicia upon the bushing. 38, 39 and 40 respectively are spacers sleeved upon the arbor 21 for positioning the stamp 36 at the proper point longitudinally of the arbor for the proper engagement thereof with the work; 41 is a retaining nut sleeved upon the arbor; and 42 is a bracket detachably secured in a rabbet 43 in the outer face of the rocker 22 and having a bearing portion 44 for the reduced end portion 45 of the arbor. Normally this bracket 42 is secured to the rocker and serves as a support for the outer end of the arbor, however, the bracket may be readily removed by removing the securing bolts 46 from the 5 rocker to permit stamps such as '36 to be placed on or removed from the stamp arbor 47 and 48 respectively are channel sections of a chute for conducting bushings and the like beneath the stamp arbor 21 and thence through the walls 1 and 4 to a suitable receptacle such as 49 upon a roller conveyor 50. As shown the upper section 47 of the chute is straight and received in and supported by the channel-shaped portion 51 of a bracket 52 adjustable vertically upon the wall 4 of the machine frame. As illustrated in Figures 3 and 5, the upright portion 53 of the bracket has an elongated slot 54 that receives the shank of a bolt 55 carried by the wall 4 and preferably rests upon the head 56 of a vertical bolt 57 adjustable vertically in a block 58 bolted to and constituting a lateral projectionof the wall 4. The lower section 48 has a substantially U-shaped portion 59 constituting an extension of the lower end of the upper section 47 and supported upon vertically adjustable brackets 61 and 62 respectively upon the front wall 1 of the machine, 100

-60 I v a conical free end-.98'that is receivable Within 7 7 au shaped 'recessfor groove 99 'in-the work holder 87 j'This' holder 87-is secured by the bolts 1100 andscrews 101 to an upstanding 1 55 fiangel02 of'the depressi'on3'0 in "thetop.

and has straight portion 63 parallel to the upper section 47. Thus the chute is substan tially U-shaped in plan.

64 is astop for the bushings traveling down 5 the chute section 47, 65 is a supporting bracket for the stop, 66 is a. cam lever for raising and lowering the stop relative to the chute, and 67 is a camfor raising and lower-Q ingthe free end of the lever 66. As shown, the'stop 64 extends transversely o-f the chute,

preferably above and at one side thereof, and. has a'relatively long cylindrical stem 68 that.

is adjustable longitudinally within a;cla1np er=belt 73 trained about, rollers 74 and 75 re-" spectively. As shown, the roller 75 constitutes an idler'roller and is free to rotate upon the shank 76 ofa bolt 76 that serves as a tie or connection between theside walls of the chute sections 47 and 48. The roller 74 constitutes the driving roller for the belt and is rigid'with a 'shaft'77 received in elongated slots 78 in opposite sides of the channel portion 51 of the bracket 52. A shaft 7 8. is journaled'in a bearing 79. constituting a lateral projection-of the wall 4 andis operatively connected by the universals 80 and 81 and intermediate shaft'82 to the-shaft'77. Pref erably theshaft 7 8' is. driven froin the drive shaft 13' and forthis purpose pulleys 83 and 84 are keyed'upon' thej respective shafts 78 and 13 and are connected by a suitable belt 85;v

.86 isaa' plunger movable withina bushing I) when the latter is inia position tobe. engaged by the stamp'die'BT, 87 is a support for the l plungersduring the stamping ope'rat'ion,-88

is a'reciprocating holder for the plunger 86, r 89 is a bearing for the holder 88, 89 is'a block secured in a recess in the block 89 and projecting laterally through an elongated slot 91 iii-the holder 88', 92 is a. roller carried by a pin '93proj'ecting from the blocks 89 and 90, and 94 is a cam on the shaft 17 having a cam ,slot95 receiving the roller 92'and adapted to 'causethe plunger holder 88 to reciprocate in thebearing 89' As shown, the plunger'86'is received withinasocket96 held by set screw 97Iwithin the holderj88, and is provided with 69 upon a shaft 70 journale'd in laterally.

secured within the holder 88, is a block wall'5. Preferably the bearing 89 for the reciprocating plunger holder is supported at its opposite ends in" an enlargement 103 of the upright wall 104 of the depression 30 and in a bracket 1 05 boltecl'to the all 2. A tubular casing 106 is secured by suitable screws'107 to the bracket 105 in :line with the bearing 89' at the outer end thereof for receiving the outer end of the plunger holder when the latter is in its outermostposition;

In use when the machine is initially started, a bushing is placed on the booster belt 7 3m the chute section 47 against the stop '64 whereupon bushings to be stamped are fed onto the booster belt 73 at the upper end of the .chutessection 47: The bushings Will move down'the chute with the booster belt 73 and will successively receive the plunger 86 and thereafter will successively engage the stop 64. Whileon the plunger, the bushing-is stamped by the die 37 of the stamp on thearbor 21;- In this connection it will be noted that the plunger: actuated by the cam 94 moves forward into a bushing,

onto the plunger support 87," andremainsstationary wh1le the stamp 36 revolves and stamps the bushing. The stop (is-actuated by the 'cam 67 then raisesandper nits the bushing formerly in engagement therewith to pass downwardly in the chute section 59 into the receptacle 49 and then returns to lowered position. The plunger 86 is then withdrawn by the camfrom the bushing just.

stamped and allows the said stamped bushing to advan'ce into engagement with the stop, permitting the next bushing in line'to receive the plunger-'on'its' return stroke to the plunger support 87. This cycle of oper'ationis repeated as long as the machine is running, f w

Thus from the foregoing it will be 'appar-; cut that; stamps. such as 36 having dies of various configurations and designs may be employed and that a-numberof such stamps may be mounted side by side or in spaced relation on the .arb'or: 21 for stamping "the bushings or similar articles. The booster belt '73 keeps the bushings moving down the chute,vand the stop 64 engages the bushings as they are stamped and this causes the next bushing to be in line with the. plunger 86 .0 receive the same'preliminaryfto being en gaged' by the die of the stainp on the arbor.

The arbor rotates constantly, and the ad-' justment provided forrthe rocker 22- carrying'the arbor is such that adjustments may be, made to. compensate for bushings having difierent wall thicknesses or for plungers having larger or smaller-diameters.

W'hile it is believed that from the foregoing description the naturela nd advantages of the invention Willbe readily apparent,- I desire to have it understood that I do not limit myself to'what is herein shown and de'-. scribed, and that suchchanges may be resorted to when desired as fall within the scope of what is claimed.

WVhat I claim as my invention is:

1. In a stamping machine, a rotatable stamp arbor, means for conducting the work adjacent the arbor, a stop for the work adjacent the conducting means, a driven shaft, a driving connection between the shaft and arbor, means associated with said driving connection for actuating said stop, and means independent of said driving connection establishing a driving connection between said shaft and conducting means.

2. In a stamping machine, a stamp arbor, means including achute and a booster belt movable longitudinally of said chute for conducting work adjacent the arbor, a driven shaft, a driving connection between said shaft and arbor, and a driving connection between said shaft and booster bolt.

In a stamping machine, a stamp arbor, a driven shaft, a driving connection between aid shaft and arbor including cam shaft, means for conducting work adjacent the arbor, means enga geable with the work when ad scent the arbor to retain the same in position to be stamped, a driving connection between said retaining means and cam shaft, and means independent of said cam shaft establishing a driving connection between said driven shaft and conducting means.

4. In a stamping machine, a rotatable staxip arbor, a chute beneath the arbor, longitudinally movable means movable across the chute adjacent the arbor to engage and retain the work in a predetermined position rela tive to the ar or, a cam shaft, a cam on said shaft, a driving connection between said shaft and arbor, and means for translating motion from the cam to the longitudinally movable member. 7

5. In a stamping machine, a constantly rotating stamp arbor, stamp carried by said arbor, m ans movable longitudinally in a plane at substantially right angles to the axis of the arbor for conducting work adjacent the arbor, and means movable in a plane substantially parallel with the axis of the arbor to retain work in aposition to be engaged by said stamp.

6. In a stamping machine, a frame, a rocker adjustable on the frame, a bracket detachably mounted on the rocker, and a rotating stamp arbor having spaced portions thereof ournaled in said rocker and bracket.

7. In a stamping machine, a frame having upright portions, and a chute substantially U-shaped in plan having a portion adjustably mounted on an upright portion of said frame and having another portion extending through an upright portion of the frame.

8. In a stamping machine,a frame having an .upright portion, a chute, and a support for the chute including a lon itudinally adjust-able element substantially parallel with the upright portion of the frame, and a bracket slidably mounted on the upright portion of the frame as a follower of said element and having a portion slidably engaging the chute. i

9. In a stamping machine, a chute having two sections, abolt connecting said sections, an endless conveyor extending longitudinally of the chute, and a rotatable support for the conveyor mounted on said bolt.

. 10. In a stamping machine, a rotating stamp arbor, and supports for said arbor including members engaging opposite ends of the arbor, one of said members being removable from the arbor to permit stamps to be placed thereon or removed therefrom.

11. In a stamping machine, adriven shaft, a cam shaft driven from the driven shaft, a rotating stamp arbor, a driving connection between said arbor and cam shaft, means for feeding work to. a point adjacent the stamp arbor, and a driving connection between said feeding means and driven shaft.

12., In a stamping machine, a cam shaft, a rotating stamp arbor, a driving connection from said shaft to said arbor, means for conducting work to a point adjacent the arbor, means for stopping the w rk when it is adjacent the arbor, and means associated with the driving connection between said shaft and arbor for controlling the movements of said stop means.

[13. In a stamping machine, a cam shaft, a rotating stamp arbor, a driving connection between said shaft and arbor, means for conducting the work into a position to be stamped, means movable into engagement with the work when it is in said position to retain the same in said position while being stamped and movable out of engagement with the work to permit the same to leave said position after it is stamped, and actuating means for the last mentioned means including a cam on said shaft, and a reciprocating member actuated by said cam.

14:. In a stamping machine, means for stamping the work, means for conducting the work into a position to be stamped, means for holding the work while it is stamped, and actuating means for said holding means including a rotating shaft, a cam on the shaft, and a reciprocating member actuable by said cam.

15. In a stamping machine, a stamp arbor, means including a movable element for supporting the work adjacent the arbor, means including a rotatable element for conveying the work to the supporting means, a drive shaft, a shaft driven from the drive shaft, a connection between one of said shafts and the movable element, and a connection between the other of said shafts and the rotatable element.

16. In a stamping machine, a stamp arbor, means including a reciprocating element for supportin the work adjacent the arbor, 7 means including a rotatable element for conveying the work to the supporting means, a drive shaft, a shaft driven from the drive a 5, shaft,'a connection between the driven shaft and the reciprocating elem ent,and a connection between the drive shaft and the rotatableelement. I t 17 Ina stamping machine, a rotatable 1 stamp arbor, a reciprocating work holder ad-'. jacent'saidarbor, a drivenshaft, a connection betweensaid shaft and rotatable arbor, a cam on the shaft,'and a connection between said cam and reciprocating work holder. 7 '18. In a stamping machine, a drive shaft,

a driven shaft, a rotatable stamp arbor, a conveyor for conducting the work to the arbor, a connection between saiddrive and driven shafts, a connection between :one of said shafts and said arbor, and a connection between'the other of said shafts and the conveyorr, f 5

19. In a stamping machine, a rotatable shaft, a cam on the shaft, a rotatable stamp arbor, a driving connection between said arbor and shaft, means for holding :the work adjacent thearbor, a-nda driving connection between said holding means and cam. 20. In a stamping machine, a rotatable 39 shaft, a rotatablestamp arbor, a driving connection betweensaid arbor andshaft, means for conductingxthe work to the arbor, and means operable by the connection aforesaid for stopping the work condncted'by the last mentioned means when it reaches a predeten' mined point relative to the arbor. In testimony whereof I affix my signature.

r I GEORGE F. YAGER. v 

